Chapter 3 - safe torque-off i/o signals, Introduction, Inputs – Rockwell Automation 2094-EN02D-M01-S0 Kinetix 6200 and Kinetix 6500 Safe Torque-off Safety Reference Manual User Manual
Page 19: Chapter 3, Safe torque-off i/o signals, Chapter

Rockwell Automation Publication 2094-RM002B-EN-P - May 2012
19
Chapter
3
Safe Torque-off I/O Signals
Introduction
This chapter describes the safe torque-off input and output signals of the
Kinetix 6200 and Kinetix 6500 drives.
Inputs
The Kinetix 6200 and Kinetix 6500 drives have two sets of dual-channel inputs.
Each dual-channel input supports the safe stop (SS) function of the drive.
The SS_IN_CH0/1 inputs are intended for connection to a non-switching
E-stop device (dry contact). It controls the safe-off request initiated by a
transition from ON to OFF.
The SS_IN_CH2/3 inputs are intended for connection to an OSSD device or as
a cascaded input from another safety axis. It controls the safe-off request initiated
by a transition from ON to OFF.
The SS_IN_CH0/1 inputs are electrically identical and rely on a pair of pulse
test outputs, TEST_OUT_0 and TEST_OUT_1.
When both channels are active, if one channel’s input terminal transitions from
active to inactive and back to active, while the other channel’s input terminal
remains active, both channels must go inactive at the same time before the
evaluated status may return to ON. This condition is called ‘cycle inputs
required’.
Topic
Page
IMPORTANT
Only one pair of dual-channel inputs can be used at the same time.